#pragma once
#include "ControlBase.h"

class Panel : public Control
{
public:
	virtual UIClass Type() { return UIClass::UI_Panel; }
	bool IsContainer() override
	{
		return false;
	}
	float Boder = 1.5f;
	Panel() {}
	Panel(int x, int y, int width = 120, int height = 24)
	{
		this->Location = POINT{x, y};
		this->Size = SIZE{width, height};
		this->BackColor = D2D1_COLOR_F{0.75f, 0.75f, 0.75f, 0.75f};
	}
	void Update() override
	{
		if (this->IsVisual == false)
			return;
		bool isUnderMouse = this->MostParent->UnderMouse == this;
		bool isSelected = this->MostParent->Selected == this;
		auto d2d = this->Render;
		auto abslocation = this->AbsLocation;
		auto size = this->ActualSize();
		auto absRect = this->AbsRect;
		d2d->PushDrawRect(absRect.left, absRect.top, absRect.right - absRect.left, absRect.bottom - absRect.top);
		{
			Control *tmpc = this;
			List<Control *> need_render_background;
			while (tmpc->BackColor.a < 1.0f)
			{
				tmpc = tmpc->Parent;
				need_render_background.Add(tmpc);
			}
			if (this->BackColor.a < 1.0f)
			{
				for (int i = need_render_background.Count - 1; i >= 0; i--)
				{
					d2d->FillRect(abslocation.x, abslocation.y, size.cx, size.cy, need_render_background[i]->BackColor);
					if (need_render_background[i]->Image)
					{
						need_render_background[i]->RenderImage();
					}
				}
			}
			d2d->FillRect(abslocation.x, abslocation.y, size.cx, size.cy, this->BackColor);
			if (this->Image)
			{
				this->RenderImage();
			}
			for (int i = 0; i < this->Count; i++)
			{
				auto c = this->operator[](i);
				c->Update();
			}
			d2d->DrawRect(abslocation.x, abslocation.y, size.cx, size.cy, this->BolderColor, this->Boder);
		}
		d2d->PopDrawRect();
	}

	bool ProcessMessage(UINT message, WPARAM wParam, LPARAM lParam, int xof, int yof) override
	{
		for (int i = 0; i < this->Count; i++)
		{
			auto c = this->operator[](i);
			auto location = c->Location;
			auto size = c->ActualSize();
			if (
				xof >= location.x &&
				yof >= location.y &&
				xof <= (location.x + size.cx) &&
				yof <= (location.y + size.cy))
			{
				c->ProcessMessage(message, wParam, lParam, xof - location.x, yof - location.y);
			}
		}
		switch (message)
		{
		case WM_DROPFILES:
		{
			HDROP hDropInfo = HDROP(wParam);
			UINT uFileNum = DragQueryFile(hDropInfo, 0xffffffff, NULL, 0);
			TCHAR strFileName[MAX_PATH];
			List<std::wstring> files;
			for (UINT i = 0; i < uFileNum; i++)
			{
				DragQueryFile(hDropInfo, i, strFileName, MAX_PATH);
				files.Add(strFileName);
			}
			DragFinish(hDropInfo);
			if (files.Count > 0)
			{
				this->OnDropFile(this, files);
			}
		}
		break;
		case WM_MOUSEWHEEL: // mouse wheel
		{
			MouseEventArgs event_obj = MouseEventArgs(MouseButtons::MouseButtons_None, 0, xof, yof, GET_WHEEL_DELTA_WPARAM(wParam));
			this->OnMouseWheel(this, event_obj);
		}
		break;
		case WM_MOUSEMOVE: // mouse move
		{
			MouseEventArgs event_obj = MouseEventArgs(MouseButtons::MouseButtons_None, 0, xof, yof, HIWORD(wParam));
			this->OnMouseMove(this, event_obj);
		}
		break;
		case WM_LBUTTONDOWN: // mouse down
		case WM_RBUTTONDOWN:
		case WM_MBUTTONDOWN:
		{
			MouseEventArgs event_obj = MouseEventArgs(FromParamToMouseButtons(message), 0, xof, yof, HIWORD(wParam));
			this->OnMouseDown(this, event_obj);
		}
		break;
		case WM_LBUTTONUP: // mouse up
		case WM_RBUTTONUP:
		case WM_MBUTTONUP:
		{
			MouseEventArgs event_obj = MouseEventArgs(FromParamToMouseButtons(message), 0, xof, yof, HIWORD(wParam));
			this->OnMouseUp(this, event_obj);
		}
		break;
		case WM_LBUTTONDBLCLK: // mouse double click
		{
			MouseEventArgs event_obj = MouseEventArgs(FromParamToMouseButtons(message), 0, xof, yof, HIWORD(wParam));
			this->OnMouseDoubleClick(this, event_obj);
		}
		break;
		case WM_KEYDOWN: // keyboard down
		{
			KeyEventArgs event_obj = KeyEventArgs((Keys)(wParam | 0));
			this->OnKeyDown(this, event_obj);
		}
		break;
		case WM_KEYUP: // keyboard up
		{
			KeyEventArgs event_obj = KeyEventArgs((Keys)(wParam | 0));
			this->OnKeyUp(this, event_obj);
		}
		break;
		}
		return true;
	}
};